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Ha Seon Sim,Won Jun Jo,Hye Jin Lee,Yu Hyun Moon,Ui Jeong Woo,Soo Bin Jung,Su Ran Ahn,Sung Kyeom Kim 한국원예학회 2021 원예과학기술지 Vol.39 No.6
This study determined the optimal growing degree days (GDD) and cultivars of Kimchi cabbage (Brassica rapa L. ssp. pekinensis) for growth and yield during spring cultivation under shading condition. There were nine treatments, and the experiments were conducted with three GDD levels (899, 924, and 961) and three cultivars (‘Chungwang’, ‘Cheongna’, and ‘Cheongok’) under shading conditions. The process-based model of Kimchi cabbage was applied for growth and yield prediction using meteorological data regarding light, temperature, wind, precipitation, and humidity in several regions. The number of leaves of ‘Chungwang’ Kimchi cabbage was greater than that of ‘Cheongna’ and ‘Choengok’ at all planting times. Most of the growth parameters were highest in the delayed transplanting treatment than in the other transplanting times. ‘Chungwang’ Kimchi cabbage was less sensitive to high temperature during spring cultivation than the other cultivars. GDD 924 was the most optimal time to harvest under the shading condition. GDD 750-870 is considered an appropriate harvest time in the primary production regions during the spring cultivation season. If shading is performed in these regions, constant production may be possible, thus, alleviating damage from high temperature.
순천향대학교 사회과학대 학생의 진로인식 및 진로지도개선에 관한 연구
심영수,차석빈,김용하,최한준 순천향대학교사회과학연구소 2003 순천향 사회과학연구 Vol.9 No.1
This study conducted an empirical research to find ways to guide the career of college students in the social science at Soonchunhyang university. Research findings are as follows. 1) About 42% respondents answered that they did job-seeking efforts. 2) With regard to job preparing efforts, students spent their time on improving their English ability, major classes, computer ability, and license obtaining. 3) Job-related information sources in the school were not fully utilized by the students. 4) In the future, students hope that our school strengthen its PR efforts, open more English-related classes, improve its school image as a local university, and provide more job-related information The study concludes with implications of the study results and suggestions for career guidance of students.
Ha Seon Sim,Ui Jeong Woo,Won Jun Jo,Hye Jin Lee,Yu Hyun Moon,Soo Bin Jung,Su Ran Ahn,Jung Su Jo,Sung Kyeom Kim 한국원예학회 2021 한국원예학회 학술발표요지 Vol.2021 No.10
Physiological disorder (calcium deficiency) of Kimchi cabbage occurred by high temperature and frequent precipitation, which leads to unexpected price fluctuations of commodities. This purpose of this study was to profile on soluble sugars, glucosinolates, and ABA catabolites contents of Kimchi cabbage leaves under extreme and moderate high temperature treatments and chitosan foliar application. At April 6, 2020, the ‘Chungwang’ Kimchi cabbage were transplanted into 625L plastic boxes filled with commercial and general soil at open-field in Wanju. Experiments were combined with three day/night temperature levels, 36/32°C (E; extreme high), 28/24°C (M; moderate high), and 20/16°C (C; control), and two chitosan foliar application (200g/L; and non chitosan foliar application). Temperature and chitosan foliar application were performed at 42 days after transplanting, and temperature treatments were maintained during 8 days in extreme weather growth simulators. The samples were collected in 4 and 8 days after commencing high temperature treatments. After 4 days of chitosan foliar application, the glucose and fructose contents of E treatment were 67.5 and 59.4 μg·g<SUP>-1</SUP>, respectively, which were higher than non application. In the chitosan foliar application treatment, the aliphatic (gluconapin and glucobrassicanapin) and indole (glucobrassicin, 4-methoxyglucobrassicin, and neoglucobrassicin) glucosinolate contents of E treatment were 151.1, 342.2, 533.1, 1627, and 1807 μg·g<SUP>-1</SUP>, respectively, which were greater than non application. The ABA, DPA, and PA contents of E treatment under chitosan foliar application were 0.0114, 1.7, and 1.0 μg·g<SUP>-1</SUP>, respectively, higher than non application. After 8 days of chitosan folir application, the gluconapin, glucobrassicin, 4-methoxyglucobrassicin, and DPA contents of E treatment were 332.0, 445.8, 2037, 2.4 μg·g<SUP>-1</SUP>, respectively, which were greater than non application. There were no effects of chitosan foliar application in M and C treatments. Results indicated that the effect of chitosan foliar application is estimated to be approximately 4 days after commencing high tempearture treatment. The application of chitosan foliar increased ABA catabolites that relieve abiotic stress, it is considered to be effective in alleviating the high temperature damage of Kimchi cabbage.